From owner-freebsd-stable@FreeBSD.ORG Tue Sep 19 08:50:16 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 58C4E16A412 for ; Tue, 19 Sep 2006 08:50:16 +0000 (UTC) (envelope-from dom@goodforbusiness.co.uk) Received: from mailhost.graphdata.co.uk (mailhost.graphdata.co.uk [195.12.22.194]) by mx1.FreeBSD.org (Postfix) with ESMTP id A328743D49 for ; Tue, 19 Sep 2006 08:50:15 +0000 (GMT) (envelope-from dom@goodforbusiness.co.uk) Received: from localhost (localhost [127.0.0.1]) by mailhost.graphdata.co.uk (Postfix) with ESMTP id C0F1811402E for ; Tue, 19 Sep 2006 09:50:12 +0100 (BST) X-Virus-Scanned: amavisd-new at graphdata.co.uk Received: from mailhost.graphdata.co.uk ([127.0.0.1]) by localhost (mailhost.graphdata.co.uk [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id AaRYj3+4bupx for ; Tue, 19 Sep 2006 09:50:09 +0100 (BST) Received: from [192.168.0.86] (gdc083.internal.graphdata.co.uk [192.168.0.86]) by mailhost.graphdata.co.uk (Postfix) with ESMTP id 27D2F114033 for ; Tue, 19 Sep 2006 09:50:09 +0100 (BST) Message-ID: <450FAF42.50401@goodforbusiness.co.uk> Date: Tue, 19 Sep 2006 09:50:10 +0100 From: Dominic Marks User-Agent: Thunderbird 1.5.0.5 (X11/20060809) MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <450F8777.7080407@gmail.com> <20060919083955.GB87657@e-Gitt.NET> In-Reply-To: <20060919083955.GB87657@e-Gitt.NET> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: bind round robin X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Sep 2006 08:50:16 -0000 Oliver Brandmueller wrote: > Hi. > > On Tue, Sep 19, 2006 at 02:00:23PM +0800, pinoyskull wrote: >> One of my client's domain has multiple IPs for redundancy, i configured >> his www as such >> >> www IN A 10.10.10.10 >> www IN A 192.168.0.10 >> >> Is there a way to prioritize 10.10.10.10 over 192.168.0.10? How do i >> configure it? > > DNS round robin is not about redundancy, the only thing you could have > that way is a kind of load balancing (not the most sophisticated way, > though). Whenever one of the servers fails, around half of the requests > still goes there and then times out/gets conn refused or whatever the > problem is. Prioritizing is not easily possible. Probably it helps if > you add one of the IPs more often to the set, but I never tried that and > did not read the docs on this topic, so before breaking your zone first > read the specs, if this works! > > For serious redundancy with failover and/or load balancing with a good > leveling you should consider getting a load balancer (be it hardware or > software), better two so you don't have the single point of failure > there :-) A good software load balancer which supports weighting is pen. In ports. http://siag.nu/pen /usr/ports/net/pen Dominic > - Oliver >